Skyplot

Venus and Mars sign calculator

Venus is traditionally linked with what you value and how you show affection; Mars with drive and how you go after things. Enter your birth date to see both signs.

Place data: GeoNames (CC BY 4.0). Calculations run in your browser; nothing you type is sent to a server.

Keep your chart with you

The Skyplot app for Android does everything on this page, and goes further:

In the free app

  • Your chart saved on your phone: open it any time, even offline
  • A personal sky note every day
  • Today's Moon on your home screen (widget)
  • Compatibility with a friend, plus an invite link
  • Birth time sensitivity: what changes if your time is off

With Skyplot Pro Pro

  • 12-month personal sky calendar
  • Personal transit notifications (off by default)
  • Add personal transits to your calendar
  • Unlimited people and the full synastry aspect list
  • Chart printout (PDF)
  • Solar return chart
  • Extra house systems: Whole Sign, Equal, Koch, Porphyry

One-time payment. No subscription.

Get Skyplot on Google PlayNo account. Your birth details stay on your phone.

Do I need a birth time?

Usually not. Venus and Mars move slowly, so the date is enough on most days. If one of them changed sign on your birth date, both possible signs are shown and the time settles it.

Retrograde at birth

If Venus or Mars appeared to move backwards in the sky when you were born, the result is marked with R. This is an apparent motion seen from Earth, not a change in the planet’s orbit.

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